What is gene expression, Biology

Assignment Help:

What is Gene Expression ?

Gene expression is the process by which a gene is activated to produce a certain protein. Cells are able to respond to changes in the environment in two ways: 1.) by controlling the production of enzyme molecules that cause expression of a gene; and 2.) by controlling the activities of enzymes that are already present through the use of feedback mechanisms.

The control mechanism for gene expression is very different in prokaryotic cells than in eukaryotes.
The way in which a specific gene expresses itself is of particular interest to scientists. Many diseases have been found to be genetically-based. Therefore, the ability to control the form and behavior of a cell or an organism would prove especially useful in the prevention and cure of disease.

One area that holds real promise in the near future is in the cloning of new tissues or organs to replace those that have become injured or diseased. Cells from the body can be used to produce clones because each cell contains a full complement of DNA. Cloning involves removal of a cell from an organism, and then providing that cell with all of the nutrients, gases, and physical conditions necessary for its growth, development, and reproduction.

The larger question is: since each and every cell has the same DNA information, what are the determining factors that cause a newly formed skin cell to form the specialized structures that enable it to perform the functions of skin, rather than, say, the types of protein structures that characterize muscle cells?

 


Related Discussions:- What is gene expression

Explain about solubility of proteins, Precipitation/Solubility of Proteins ...

Precipitation/Solubility of Proteins Most of the functional properties are  dependent on the degree to which the proteins are soluble. The solubility behaviour provides a good

Explain the term active transport, Explain the term active transport? ...

Explain the term active transport? Active Transport :  At intervals, protein assemblies involved in selective, or active transport of materials are inserted into the cell mem

Explain the food applications of gum arabic, Explain the Food Applications ...

Explain the Food Applications of Gum Arabic A major use for gum Arabic is in the confectionery industry where it has two important functions; to retard or to prevent crysta

TISSUES, difference between axon and cyton

difference between axon and cyton

Describe the blood coagulation process, Q. How can the blood coagulation (c...

Q. How can the blood coagulation (clotting) process be described? Blood clotting encompasses a sequence of chemical reactions whose respective products are enzymes that catalyz

Bitter taste, Q. Bitter Taste? Bitterness is an inherent property of a ...

Q. Bitter Taste? Bitterness is an inherent property of a substance. It is due to substances such as alkaloids present in food. For example, tannins present in tea, coffee, frui

E. coli can utilize lactose, Which of the following E. coli can utilize ...

Which of the following E. coli can utilize lactose? Explain your answer. (-) superscript means mutation in the gene. Explain why the strain is able or unable to utilize la

What are the endocrine glands, What are the endocrine glands that regulate ...

What are the endocrine glands that regulate sexual activity in males? How does this regulation work and what are the involved hormones? In males the sexual activity is regulate

Define exclusion chromatography - basic separation technique, Define Exclus...

Define Exclusion chromatography - basic separation technique? It is a chromatographic process, in which separation of the sample components takes place according to the molecul

Define intra enterocyte transport - non-haem iron absorption, Define Intra ...

Define Intra enterocyte transport - non-haem iron absorption? Intra enterocyte transport: In the enterocyte, the absorbed iron can have one of the following metabolic fates:

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd